问题
解答题
能简算的简算.
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答案
(1)(125+11)×8
=125×8+11×8
=1000+88
=1088
(2)63×102-63×2
=63×(102-2)
=63×100
=6300
(2)25×28
=25×4×7
=100×7
=700
(4)67×67+33×67
=67×(67+33)
=67×100
=6700
(5)125×32×25
=125×8×4×25
=(125×8)×(4×25)
=1000×100
=100000
(6)99×32
=(100-1)×32
=100×32-32
=3200-32
=3168
(7)(750-690)÷5+88
=60÷5+88
=12+88
=100
(8)[218-(312-210)]×3
=[218-102]×3
=116×3
=348